Base | Representation |
---|---|
bin | 1000001101101… |
… | …01111111110100 |
3 | 11210122122000021 |
4 | 10012311333310 |
5 | 120114343100 |
6 | 10500454524 |
7 | 1464444043 |
oct | 406657764 |
9 | 153578007 |
10 | 68902900 |
11 | 35991850 |
12 | 1b0aa444 |
13 | 11376361 |
14 | 921855a |
15 | 60b0a1a |
hex | 41b5ff4 |
68902900 has 36 divisors (see below), whose sum is σ = 163114560. Its totient is φ = 25055200.
The previous prime is 68902877. The next prime is 68902903. The reversal of 68902900 is 920986.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68902903) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30220 + ... + 32419.
It is an arithmetic number, because the mean of its divisors is an integer number (4530960).
Almost surely, 268902900 is an apocalyptic number.
It is an amenable number.
68902900 is an abundant number, since it is smaller than the sum of its proper divisors (94211660).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68902900 is a wasteful number, since it uses less digits than its factorization.
68902900 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 62664 (or 62657 counting only the distinct ones).
The product of its (nonzero) digits is 7776, while the sum is 34.
The square root of 68902900 is about 8300.7770720578. Note that the first 3 decimals coincide. The cubic root of 68902900 is about 409.9641055231.
The spelling of 68902900 in words is "sixty-eight million, nine hundred two thousand, nine hundred".
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